baber/WOPTO huggingface dataset:
Patent GB-601571-A (GB)
Title: Improvements in ultra-high-frequency aerial systems or arrays
IPC: H01Q19/13
Filed: 1945-12-11
Abstract: 601,571. Directive aerial systems. BOHM, O. M., and WRIGHT, C. S. Dec. 11, 1945, No. 33454. [Class 40 (vii)] In a directive aerial system comprising a reflector in the form of a short cylindrical parabola 1 with plane closed ends 2 and 3, having a rectangular aperture 4, and a feeding or receiving wave-guide 5 with a rectangular horn mouth 6 directed towards the reflector and approximately located in the plane of the aperture 4, the mouth dimension of the horn parallel to the smaller side of the aperture is made less than (for example a half) the said side, and the horn mouth is placed nearer to one of the longer sides of the aperture than the other so that the direction of maximum sensitivity is inclined away from the normal towards one of the end plates.
Patent GB-604988-A (GB)
Title: High frequency amplifier
IPC: H03F1/04
Filed: 1945-12-11
Abstract: 604,988. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd. Dec. 11, 1945, No. 33462. Convention date, April 2. [Class 40 (vi)] Rectangular waves are derived from a source of high-frequency and applied to a pair of valves arranged in push-pull, the output being fed to a load through a low-pass filter. A source of H.F. 10 feeds, over amplifier 11, a pair of cathode-coupled valves V1, V2, resistors R1, R2 being provided in the grid leads so that square waves are generated across resistors R4, R3 connected to the grids of the output valves V3, V4. Inductors L1, L3 and capacitors C2, C3 constitute a filter passing the fundamental and the third harmonic to the tuned circuit C4, L5 and thence to the load. A further inductor and capacitor may be added to pass the fifth harmonic, Fig. 2 (not shown), and feedback may be applied by connecting capacitors between the anodes of the output valves and the cathodes of the driver valves, Fig. 3 (not shown). The square waves may be generated by applying the input to a pair of biassed diodes, Fig. 4 (not shown). Specification 150,037, [Class 40 (v)], is referred to.
Patent GB-427658-A (GB)
Title: An improved post for marking or indicating the boundaries or limits of playing fields, aerodromes and the like or boundaries of any kind
IPC: E01F9/627
Filed: 1933-11-29
Abstract: 427,658. Posts. ORR, A. M., Glenartney, Collylinn Road, Bearsden, Dumbartonshire. Nov. 29, 1933, No. 33465. [Class 20 (i)] A readily - yieldable post for indicating the limits of playing fields and aerodromes, and other boundaries, comprises an inflatable tubular member a insertable into a socket d in the ground. The post has an inflating aperture e and its base is surrounded by a sleeve c. A flag may be attached to rings g. The post may be reinforced with canvas.
Patent GB-448091-A (GB)
Title: Improvements in variable leverage mechanism for vehicle brakes
IPC: B61H13/32
Filed: 1935-12-03
Abstract: 448,091. Vehicle brakes. SVENSKA AKTIEBOLAGET BROMSREGULATOR, 5, Adelgatan, Malmo, Sweden. Dec. 3, 1935, No. 33506. Convention date, Jan. 7. [Class 103 (i)] Variable leverage brake mechanism particularly for railways in which the brake levers 3, 4 are connected by rods 5, 6 selectively brought into operation by abutments 13, 14 pivoted respectively at the points at which the lever 4 is connected to the rods 5, 6 and connected bv a link 15 so that when one abutment is swung into operation the other is swung out of operation. The abutments 13, 14 are adapted to coact with adjustable nuts 11, 12 on the rods 5, 6 and are operated by bellcranks 22, 24 and a rod 25. The bell-crank 22 is freely pivoted on the pivot 10 inside a casing 17 fixed to the side of the abutment 14 and engages an aperture 21 in the casing by a spring rod 20 which moves and maintains the abutment in either active or inactive position. In a modification, the pivots at which the abutments are pivoted are mounted on the frame of the car.
Patent GB-759777-A (GB)
Title: Improvements in or relating to electric furnaces
IPC: H05B3/02
Filed: 1953-12-02
Abstract: 759,777. Electric furnaces; radiation shields. GENERAL ELECTRIC CO., Ltd., and KETTERINGHAM, T. A. Dec. 2, 1954 [Dec. 2, 1953], No. 33520/53. Class 39(3). A furnace especially an electric furnace having graphite resistance heating elements in a vacuum or inert or non-oxidizing gas in the furnace has between the heaters and the furnace wall a radiation screen reflecting heat back into the furnace, said screen comprising an enclosure formed by a plurality of separate sheets 1 of heat resisting material depending or hanging freely from supports at their upper edges and overlapping at their sides. Each flat hanging sheet may comprise two sheets of molybdenum rivetted together, and the top edge is bent over to form a flange which has two spaced elongated closed slots to fit over pegs on the furnace framework. One edge of each hanging sheet is preferably bent over at 9 at a slight angle so as to overlap with an adjacent sheet. The furnace framework comprises steel rods 3 parallel to the axis of the furnace and welded to upper and lower circular steel bands 4, the tops of the rods engaging the slots in the top flanges of the screen sheets. The lower steel band may rest on a support on the furnace floor. The sheets are hung on the pegs to form an enclosure around the heater and may be built up by superposition into a spiral of several layers with their upper flanges resting on one another. Top and bottom radiation screens may be built up from overlapping molybdenum screens, preferably sector-shaped and attached by molybdenum wire to grids of steel rods. The sheets may carry spacing rivets to prevent large surfaces of the sheets from coming into contact. The sheets are alternatively supported on upright molybdenum pins rivetted to the inside top edge of a stainless steel cylinder. The screen may be used in an electric furnace as in Specification 759,778.
Patent GB-745958-A (GB)
Title: Apparatus for use in killing poultry
IPC: A22B3/08
Filed: 1953-12-03
Abstract: 745,958. Killing poultry. WARD, G., and WARD, E. F. Nov. 25, 1954 [Dec. 3, 1953], No. 33569/53. Class 5 (1). Poultry-killing apparatus comprises a receptacle for closely confining the body of a bird and a lever mechanism which engages with the neck so that it can be pulled away from the receptacle and dislocated. A receptacle 10 the size of which can be altered is supported by three rods 11 and is designed to hold the body of a bird so that the neck and head project through the bottom. A lever 15 is pivotally mounted to a bracket 17x which is mounted on one of the rods 11 in such a way that the lever has some lateral movement. A second lever 18 is pivotally fixed to the first lever and is bent to hold the bird's neck against friction material 22 disposed around the lever 15. A spring clip 26 is provided for the lever 18 which is strengthened in its closed position by a spike engaging a slot 27 (Fig. 2, not shown). A spring 23 supports the lever mechanism.
Patent GB-1291822-A (GB)
Title: Soft fruit harvesters
Inventor: KEMP IVOR FREDERICK
IPC: A01D46/28
Filed: 1968-07-15
Abstract: 1291822 Fruit harvester NATIONAL RESEARCH DEVELOPMENT CORP 15 Oct 1969 [15 July 1968] 33671/68 Heading A1F A harvester for harvesting fruit e.g. blackcurrants on standing bushes by bending them in a direction transverse to the harvester travel direction to an angle out of the vertical and not substantially horizontal and shaking the fruit therefrom by rapid oscillatory motion has a frame which comprises a chassis 13, arch structures 15, beams 17, and a framework movable through an angle of 12‹ about pivot 23 and comprising- longitudinal members 19 and transverse members 21. Drums 27, freely rotatable about their longitudinal axis and carrying a number of dog-leg shaped steel fingers 29, are journalled into the framework on shafts 33 whose longitudinal axis is normal to the direction of harvester travel and preferably is inclined at a preset angle within the range 33‹ to 57‹ to the vertical. Nose guide member 77 splits the bush and bends the bush portion nearest the harvester in towards the underside of drums 27, the motion of the harvester causing the drums 27 to rotate as the bush moves past. Picked fruit drops down to onto conveyor 73 from whence it moves via a second conveyor to a packing station at the rear of the harvester. The rapid oscillatory motion is applied to drums 27 by means of a generator 37 comprising a housing 39 at the centre of which there is a tubular drive shaft 41 coaxial with, but rotating independantly of shaft 33 and which is rotatingly driven by a hydraulic motor via toothed belt 47 and pulley 45. Slave shafts 51, 53 are journalled in housing 39 and are rotatingly driven in common speed and sense with shaft 41 via chains 55 and sprockets 57, and each slave shaft carries an eccentric mass 59, 61 respectively which when rotating set up an oscillatory motion about axis 41 which is transferred to each drum 27 through two rigid elements 63 and 65, each with upstanding lugs 67, 69 respectively (Fig. 5), in between which is placed elastomeric material, e.g. rubber 71. Limited rotary motion of flange 65 relative to element 63 takes place about bearing 44. In further embodiments two drum frameworks can be provided and the harvester can either straddle a row of bushes and split and bend them away from its longitudinal axis, or pass between two rows and bend them towards it. The fingers 29 may alternatively be of glass fibre reinforced plastics material.
Patent GB-400004-A (GB)
Title: Improvements in and relating to cigarette tubes and the production thereof
IPC: A24C5/46
Filed: 1932-11-29
Abstract: 400,004. Cigarette-maldng machines. AIVAZ, B., 1, Rudolf-ter, Budapest. Nov. 29, 1932, No. 33811. Convention date, Sept. 17, 1932. [Class 130.] The filter plug of a cigarette is secured to a cigarette paper tube by adhesive. A plug 11, Fig. 1, is prepared by a winding device 10 and then forced by a plunger 12 beneath an intermittently rotated grooved disc 2 which enters an adhesive container 1. When the disc is at rest adhesive is applied to the plug 11 which is then compressed as it enters a sleeve 23 formed integral with a mandrel 13. The mandrel is then projected into a cigarette tube 14 and a pivoted blade 18 is lowered into a longitudinal slot in the sleeve and mandrel to eject the plug 11 as the mandrel is withdrawn. The plug expands as it leaves the sleeve 23 and is secured in the tube 14 by the adhesive. Specification 236,957, [Class 130, Tobacco], is referred to.
Patent GB-634358-A (GB)
Title: Improvements in or relating to electric leads for ignition systems
IPC: H01R4/10
Filed: 1947-12-23
Abstract: 634,358. Couplings. DUNLOP RUBBER CO., Ltd., POWELL, E. F., and BULGIN, D. Dec. 23, 1947, No. 33893. Addition to 619,030. [Class 38 (i)] A terminal 6 having a sleeve 7 is joined to a non-metallic conductive core of a lead 1 which may be of the construction described in the parent Specification, in which a conductive thread 2 has a resilient insulating covering 8 and a conductive-rubber end-piece 3, by providing a longitudinal slit 4 in the endpiece, and inserting the bared thread therein, and passing the sleeve 7 over both the end piece and the adjacent covering and by deforming the sleeve securing it to both. The slit 4 extends from the surfaceto the bore of the end-piece which may be of soft-vulcanized butadiene/ styrene copolymer, butadiene/acrylonitrile copolymer, or neoprene.
Patent GB-1340377-A (GB)
Title: Production of copper silicate
IPC: C01B33/20
Filed: 1971-07-20
Abstract: 1340377 Copper silicate DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 20 July 1971 [23 July 1970] 34001/71 Heading C1A Copper silicate is produced by precipitation from aqueous solutions of an alkali metal silicate and a copper salt at elevated temperature, preferably 50-90‹ C. The silicate used may have an Na 2 O : SiO 2  ratio of 1 : 1 to 1 : 12. The salt may be CuSO 4 . Acid, e.g. H 2 SO 4 , or base, may be added before, during, or after addition of the Cu salt to the silicate. The product suspension may be stirred for 30-60 mins. with or without heating, then filtered, washed, dried, and ground.
Patent GB-788510-A (GB)
Title: Grease manufacture
Filed: 1954-11-24
Abstract: Lubricating grease, comprising a lubricating oil and a soap gelling agent, is homogenized by passing it through a restricted orifice at a pressure of at least 500 lbs./sq. inch.  Suitable lubricating oils are mineral oils, polymerized olefins, esters of dibasic acids, esters of polyalcohols with monocarboxylic acids, silicones, silicate esters, esters of phosphorus containing acids, fluorocarbons, perfluoro-alkyl ethers, and perfluoro-alkyl amines. Specific synthetic lubricating oils mentioned are polypropylene polypropylene glycol, di-(2-ethyl-hexyl) sebacate or adipate, dibutyl phthalate, polyethylene glycol di-(2-ethyl hexoate), and polymethylsiloxane. Mixtures of mineral and synthetic lubricating oils may also be employed.  Alkali metal, alkaline earth metals, aluminium and mixed base soaps are mentioned as gelling agents. Homogenization may be effected in a Manton-Gaulin homogenizer apparatus is described in which lubricating oil and soap or ingredients for making the same, are fed to a steam-heated pressure kettle, wherein saponification and/or admixture of the ingredients occurs.  The resulting mixture passes to an open steam-heated finishing kettle, then to the high pressure homogenizer, and finally through a filter, arrangements are made for the recycle of grease, back to the finishing kettle, after it leaves the finishing kettle or the homogenizer.  In the examples, the preparation of homogenized greases is described, the ingredients being (a) mineral oil, lithium and calcium stearates, sodium 12-hydroxy stearate, barium salt of diwax benzene sulphonic acid and phenyl alpha-naphthylamine, and (b) mineral oil and calcium soap of tallow, with or without calcium soap of cottonseed fatty acids.  The processes for preparing lubricating greases disclosed in Specifications 745,145 and 749,729 are disclaimed.
Patent GB-1126268-A (GB)
Title: Methods and apparatus for pumping one liquid by means of another liquid
Inventor: DOSTRUP MAX
IPC: B65G53/30
Filed: 1966-07-29
Abstract: 1,126,268. Regulating feed to rotary kilns. F. L. SMIDTH & CO. A/S. 12 July, 1967 [29 July, 1966], No. 34125/66. Heading F4B. [Also in Divisions F1, G1 and H1] Raw cement slurry is fed through a pipe 71 to the upper end of an inclined rotary kiln 57 by pumping apparatus 72 (see Division F1). The kiln is rotated by a ring gear 64 driven through a reduction gear 66 by an electric motor 65. Coal dust, gas or oil are supplied with primary air, at the lower end of the kiln, to a burner within the kiln. The gaseous combustion products are withdrawn at the upper end of the kiln through a casing 70. The combustion products may pass through a blower and an electric dust precipitator. A dynamo 73 driven by the kiln driving motor 73 controls the operation of the pumping apparatus 72 in accordance with the speed of rotation of the kiln.
Patent GB-784685-A (GB)
Title: Improvements relating to the removal of dust from buffed hides, skins and the like
IPC: C14B1/00
Filed: 1954-11-29
Abstract: 784,685. Buffing machines. TURNER MACHINERY, Ltd., [formerly TURNER TANNING MACHINERY CO., Ltd.], and HALL, C. Oct. 17, 1955 [Nov. 29, 1954], No. 34521/54. Class 76. [Also in Group XXVIII] In a skin, e.g. leather buffing apparatus having suction and pressure nozzles 31 ... 33, Fig. 2 (see Group XXVIII), for removing dust adhering to a sheet 50 having passed between a buffing roller 3 and a feeding and supporting roller 5, the roller 3 is disposed on a shaft 4 journalled in end uprights 2, Fig. 1, of a base frame, the roller 5 is mounted on a shaft 6 having its ends journalled in carriages 9, each having a portion 8 slidably mounted on guides 7 towards and away from the buffing roller 3, and a rotating brush 21 connected by levers pivoted to the carriage portions 9 cleans the underside of roller 5 and assists in guiding the buffed skin 50 to a discharge table 27. The position of the carriages and hence the roller 5, a feed table 15 and the brush 21 are controlled from a treadle 17 articulated at its ends to levers 18 fast with a counterweighted cross-shaft 19 carried by uprights 2 and having secured to each end a lever 53 connected by a link 54 to a bell-crank lever 55 which in turn is connected by a ball head 56 to its associated carriage. Rotation of the rollers 3, 5 and brush 21 is effected by a belt 59 and a pulley 60 at one end of the shaft 4 having at its other end a pulley 61, Fig. 3, which through a belt 62 transmits the drive to a further pulley 63, carried by a shaft 72. The latter transmits the drive through gear pinions 64, 65 to the shaft 66 of a further pulley 67 and this through a belt 68 operates a pulley 69 on the shaft 6 of the roller 5.
Patent GB-471890-A (GB)
Title: Improvements in laminated springs
IPC: B60G11/36
Filed: 1935-12-13
Abstract: 471,890. Laminated springs. WELLER, J. Dec. 13, 1935, Nos. 34616 /35 and 16929 /36. [Class 108 (iii)] [Also in Group XXIV] A tensioning device for driving chains and the like comprises a laminated spring in which leaves A, C are anchored at E and leaves B, D at F, the anchorages being fixed or constrained so that as the spring flexes the leaves slide over one another. The outer leaf A is formed as a slipper to press against the chain. The spring may comprise (1) a simple pair of leaves, of which the inner has the greater curvature ; or (2) a single leaf interposed between a pair such as A, C ; or (3) any number of leaves. Friction material may be interposed between the leaves. The free end of the outer leaf A may be bent round at A<1> to engage the pin F. The free end of one or more of the leaves may be urged towards the opposite end, or towards the free end of one or more other leaves, by a spring H. Preferably a clip G fastened to the free end of the innermost leaf is acted on by the spring H. The clip G is formed with lugs G<1> to keep the leaves together. In the modification shown in Fig. 4, the slotted plate K is slidable on the pin E and is connected at K<1> to the leaf D. The spring H acts through a pivoted link at K<3>, so that as the laminated spring flexes and the relative sliding and thus the damping increases, the pressure between the leaves produced by the spring H is decreased. The spring H may be a compression spring acting through a linkage. Specification 273,823, [Class 80 (i)], is referred to.
Patent GB-823730-A (GB)
Title: Rotary pumps
Inventor: LEE DENIS ERNEST
IPC: F04C2/44
Filed: 1956-11-13
Abstract: 823,730. Rotary pumps. LUCAS (INDUSTRIES) Ltd., J. Oct. 10, 1957 [Nov. 13, 1956], No. 34627/56. Class 110 (2). In a rotary pump of the hinged vane-type the tips of the vanes c lie in advance of their connection with the rotor body a and cooperate with spring-loaded plunger stops e, f, the arrangement being such that fluid can flow freely from the inlet g to the outlet h when the rotor is at rest and can flow from the outlet to the inlet when a predetermined delivery pressure is attained.
Patent GB-1505324-A (GB)
Title: Circuit arrangements for effecting conversions between digital and analogue signals
IPC: H04L29/00
Filed: 1976-08-20
Abstract: 1505324 Automatic telephone exchanges SIEMENS AG 20 Aug 1976 [30 Sept 1975] 34744/76 Heading H4K A circuit arrangement for connecting an analogue substantially to a digital network in which D/A and A/D converters are powered only if a valid incoming digital signal is detected and/or the substatation is in an operative state, i.e. receiving or transmitting. In the embodiment a detector Det detects valid digital signals on line PCMan and through a gate GO (AND or OR) closes a switch Sw to allow power to be supplied to converters Vs. Gate GO may be enabled by a signal from hook switch Hs when the handset is lifted. The detector Det comprises an input circuit including a non- retriggerable monostable Z 1 a delay circuit (diode D, resistor W and capacitor K), and an AND gate GU, which only admits pulses exceeding a predetermined width, a trigger monostable Z2 for producing undistorted pulses and a trigger bistable FF which is set when a valid pulse is detected; bi-stable FF and monostable Z2 are reset when the handset is replaced.
Patent GB-467568-A (GB)
Title: Improvements in rail vehicles
IPC: B61C5/00
Filed: 1935-12-16
Abstract: 467,568. Motor rail vehicles. WALKER BROS. (WIGAN), Ltd., and WALKER, A. G. Dec. 16, 1935, No. 34815. [Class 79 (iii)] A motor rail-vehicleassembly comprises a driving unit having a pair of driving wheel axles 8, 9, driven respectively by engines 1, 2, with parallel driving shafts disposed in opposite directions, and a pair of coach units each supported by wheels at one end and supported at their opposite ends by the driving wheels of the driving unit, preferably through king-pins 10, on the unit. Each engine drives through a clutch and gear-box, preferably with synchronized or conjoint control. The axles may be connected by a connecting rod or chain.
Patent GB-651264-A (GB)
Title: Automatic telegraph or telephone system with registers, directly controlling the selecting stages
IPC: H04L12/00
Filed: 1947-12-30
Abstract: 651,264. Automatic exchange systems. STAATSBEDRIJF DER POSTERIJEN TELEGRAFIE EN TELEFONIE. Dec. 30, 1947, No. 34834. Convention date, Oct. 31, 1942. [Class 40 (iv)] In a register-marker system each register has an individual current source insulated from ground and from the other current sources. In order to prevent cross-connections with two current sources and two test relays in series the test circuit is disabled until the selector reaches the marked group. As shown in Fig. 2, the marking switch MS is set by the incoming digit and when the group selector GK is to be controlled contact of the start relay S (not shown) is closed whereupon coupling magnet K and relay A are energized. When the selector reaches the marked group B comes up over wiper e and off-normal contact Ko, holds over its winding I and releases A. The operation of B also connects ground to winding II of the test relay T which responds to the first free outlet in the group. Wiper e leads wiper c to allow B to pull up in time for the first outlet to be tested. If all outlets in the marked group are busy the selector steps on to the next group whereupon C operates over wiper b of MS, interrupts the test circuit, and releases B. Relay C locks up in series with D and when the selector reaches its normal position Ko changes over and relay E pulls up, releasing C and D. Hunting is then repeated. When T operates the increase of current in the testing circuit consequent upon the connection in circuit of low resistance winding TI operates the marginal switching relay P. The group selectors are non-homing and the register has therefore to determine whether in a seized selector the desired group lies ahead of the wipers or behind them. Arrangements for permitting this are included in the embodiment of Fig. 3. On seizure (contact s closed) G and H pull up and the latter interacts with stepping magnet I to drive a tracing switch OS. As soon as the bwiper of OS reaches the marking wire to which the e-wiper of the group selector is connected relay L pulls up, operates the clutch magnet K of the selector and brings up relay A. Switch OS then homes under control of H and I. If the selector has vet to reach the desired group, L comes up before C and D can be energized and prevents their subsequent operation ; but if it has passed the group, C pulls before L and D follows so that the testing circuit is disabled until E comes up when the selector passes the home position. Testing is prevented if the selector is in the marked group by making C quicker to operate than L. Modifications are also described in which the selector is a final selector.